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import unittest

import numpy as np

import matx
from matx.runtime.ndarray import NDArrayImpl


class TestNDArrayImpl(unittest.TestCase):
    def test_ndarray_impl(self):
        a = matx.array.NDArray([1, 2, 3], shape=[3], dtype='int32')
        self.assertEqual(a._get_impl(), NDArrayImpl.NDARRAY)
        self.assertTrue(a is a._to_impl())
        # test numpy implementation
        a._set_impl(NDArrayImpl.NUMPY)
        self.assertEqual(a._get_impl(), NDArrayImpl.NUMPY)
        np.testing.assert_equal(a._to_impl(), a.asnumpy())


if __name__ == '__main__':
    unittest.main()
